diff --git a/.gitea/actions/docker-build/action.yml b/.gitea/actions/docker-build/action.yml
index dfb043c..bb80960 100644
--- a/.gitea/actions/docker-build/action.yml
+++ b/.gitea/actions/docker-build/action.yml
@@ -17,13 +17,13 @@ inputs:
     default: ""
   registry:
     description: Docker registry for login (e.g. ghcr.io)
-    default: ""
+    default: ${{ secrets.DOCKER_REGISTRY }}
   registry-username:
     description: Docker registry username
-    default: ""
+    default: ${{ secrets.DOCKER_USERNAME }}
   registry-password:
     description: Docker registry password (use secrets.DOCKER_PASSWORD)
-    default: ""
+    default: ${{ secrets.DOCKER_PASSWORD }}
   push:
     description: Push images to registry after build
     default: "false"